<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title>DOM事件探秘</title>
    <script type="text/javascript"src="event.js"></script>
    <script type="text/javascript"src="script.js"></script>
</head>
<body>
        <div id="box">
            <input type="button"value="按钮"id="btn"/>
            <input type="button"value="按钮"id="btn2"/>
            <input type="button"value="按钮"id="btn3"/>
            <a href="event.html"id="go">跳转</a>
        </div>
</body>
</html>